A vessel is half filled with a liquid of refractive index `mu`. The other half of the vessel is filled with an immiscible liquid of refractive index `1.5mu`. The apparent depth of the vessel is 50% of the actual depth. Then `mu` is

A vessel is half filled with a liquid of refractive index mu . The other half of the vessel is filled with an immiscible liquid of refractive index 1.5 mu . The apparent depth of vessel is 50 % of the actual depth. The value of mu is

A vessel is quarter filled with a liquid of refractive index mu . The remaining parts of the vessel is filled with an immiscible liquid of refractive index 3mu//2 . The apparent depth of the vessel is 50% of the actual depth. The value of mu is

A vessel is quarter filled with a liquid of refractive index mu . The remaining parts of the vessel is filled with an immiscible liquid of refractive index 3mu//2 . The apparent depth of the vessel is 50% of the actual depth. The value of mu is

A vessel of depth d is half filled with a liquid of refractive index mu_1 and the other half is filled with a liquid of refractive index mu_2 . The apparent depth of the vessel, when looked at normally, is

A vessel of depth 2d cm is half filled with a liquid of refractive index mu_(1) and the upper half with a liquid of refractive index mu_(2) . The apparent depth of the vessel seen perpendicularly is

A vessel of depth 2d cm is half filled with a liquid of refractive index mu_(1) and the upper half with a liquid of refractive index mu_(2) . The apparent depth of the vessel seen perpendicularly is

A vessel of depht 'x' is half filled with oil of refractive index mu_(1) and the other half is fillied with water of refractive index mu_(2) . The apparent depth of the vessel when viewed from above is